Improvement in machines for inserting the pintles in butt-hinges



2 Sheets--Sheet 11 F. SWAN. Machines for Inserting the,Pintle inButt-Hinges.

Patented Feb. 24,1874.

2Sheets--Sheet F. SWAN. Machines for Inserting the Pintle inButt-Hinges.

Patented Feb. 24,1874.

FIG-.3.

FRANK swAN, OF JOLIET, ILLINOIS.

IMPROVEMENT IN MACHINES FOR INSERTING THE PINTLES IN BUTT-HINGES.

Specification forming part of Letters Patent No. 148,001, dated February24, 1874; application filed January 9, 1874.

'lo all whom "it may concern:

Be it known that I, FRANK SW N, of J oliet, WVill county, Illinois, haveinvented a new and useful Improvement in Machines for the Mannfacture ofButtHinges, of which the following is a specification:

The object of my invention is to apply the wrought-iron pivot or pintleto the lower half of those butt-hinges which consist of two separablemembers in a much more rapid, secure, and economical manner than hasheretofore been done. To accomplish this result I make use of a coil ofwire of suitable diameter, or else of a long round bar or rod of iron,which wire or bar is, by proper appliances, automatically forced intothe pintle-socket of one of the leaves, plates, or like member of one ofthe hinges after which said wire or rod is severed by a cutter or bitwhich is brought into action at regular intervals. In order that thepintle may be retained in its proper position within the butt-socket, asmall and outwardlyprojecting spur, barb, or fin is formed on one sideof the wire by the action of a suitable chisel, which is automaticallyadvanced by a cam on the drivingshaft of the machine, and afterwardretracted by a spring. This barb or fin projects in such. a direction asto offer no opposition to the entrance of the wire into the appropriatesocket in the butt, while at the same time it effectually prevents anywith- (lrawal of the pintle, as hereinafter more fully explained. It isevident that the butt must be clamped within suitable jaws and heldsecurely in position until the wire has been nicked or barbed, inserted,and severed; after which the jaws are opened, the butt removed, andanother one inserted in its place, so as to render the operation acontinuous one. The butt, after being removed from the retainingclamp,has projecting from it a wire pivot or pintle of suitable length forinsertion in the.

other leaf of the hinge, which latter operation isaccomplished by hand.

Having thus briefly described the main feature of my invention, I willnow proceed to give a detailed explanation of one of a number ofmachines that may be advantageously employed for accomplishing saidresult.

Figure 1 is a perspective view of my preferred form of machine, saidmachine being shown with a butt in position and the wire being fed intothe butt-socket. Fig. 2 is a plan of the machine, the butt being removedand the feed-carriageretracted. Fig. 3 is a longitudinal section at theline m m. Fig. 4 is a transverse section at the line Y Y. Fig. 5 is aplan showing the cutter or bit in its opened position. Fig. 6 shows thesame closed, the wire severed and in the act of being nicked by thechisel. Fig. 7 is a horizontal section through the clamping-jaws, a buttbeing shown inserted between them, and the wire pintle represented as inthe act of being forced into the socket of said butt. Fig. 8 is avertical section through the same at the line Z Z. Fig. 9 is aperspective view of the combined cutter andmchisel detached from themachine; I and Fig. 10 is a sectional view, showing the butt after ithas been removed from the machine, with the pintle secured in its properposition.

Of the above-described illustrations Figs. 5, 6, 7, 8, 9, and 10 aredrawn on an enlarged scale.

A represents a stout bed -plate or table, which supports the operativeparts of the machine, said table being elevated a suitable distance uponlegs B. Projecting upwardly from this table are plummer blocks or boxes0 c c", which afford journal bearings for the drivingshaft, 0, that isdisposed longitudinally of the machine. This driving-shaft carries atone end a heavy fly-wheel, D, that may be operated either by the winchor handle d, or by a suitable belt connection with a steam-engine orother motor. That portion of the drivingshaft the most remote from thefly-wheel has secured to it a drum, cylinder, or hub, E, from apart ofwhoseperipheryahelicalflange or cam, 6, projects. The object of this camis to advance a feed-carriage, F, which it accomplishes by.

coming in contact at the proper time with a roller, G, that is journaledupon a stud-shaft, g, projecting laterally from said feed-carriage orslide. Projecting downwardly from this carriage is a shank or stem, f,that traverses a longitudinal slot, at, in the table, and thereby servesto maintain said carriage in its proper rectilinear path. This carriageis retracted by a weight, H, although a spring maybe substitutedtherefor. This weight is suspended from a rope or chain, h, which, afterbeing rove around a pulley or grooved roller, I, is secured to an arm,i, which projects laterally from the carriage F. The retraction ofcarriage F is limited by a gage-bar, J, whose screw-threaded portion jengages with a suitable lug, j, of the table A. Pivoted, at f, to thefeed-carriage is a jaw or detent, K, having the shape of a bell-crank,the long arm of which, 7:, is acted on by a spring, L, in such a manneras to force its shortarm k toward the shoulder lof carriage F, for apurpose which will presently appear. Rigidly secured to the table A is ashort stout block or abutment, M, within which is fitted a perforatedsteel guide, m, that receives the wire or rod W, to be employed for thepintle of the hinge. Adapted to have a reciprocating movement upon thisabutment, and transversely of the machine, is the cutter N, which.consists of a steel plate having a bit, 12, and a chisel or nickingdevice, a, which latter enters the slot m of said abutment. This plateN, with its cutter and chisel, is clearly shown in Fig. 4, and it willbe seen, by referring to said illustration, that the chisel or nickingdevice n has an oblique cutting-edge, the object of which is to impart acorrespondingly-shaped incision in one side of the wire W, and therebyproduce an outwardly-projecting barb or fin, X, upon said wire, for apurpose which will )resently appear. The cutter is advanced ..ard theabutment or anvil M by a pin, 0, that projects radially from thedriving-shaft O, the retraction of said cutter being affected by aspring, P. One end of this spring is fixed to the table A, while itsfree end engages over a flange or lip, 19, of the cutter. Secured to thetable A is the fixed jaw Q of a clamp, Q Q, of which the movable jaw Qslides within the transverse slot a of the bed-plate, said sliding jawbeing opened and closed by the action of the supplementary arm R of abell-crank, R It, that is pivoted at r to the table of the machine, asmore clearly shown in Fig. 4. The clamp Q Q not only maintains the buttaccurately in line with the guiding-die m, but it also prevents the buttbeing burst or cracked when the pintle is forced into its socket. Thehorizontallyprojecting arm R of this bellcrank carries a weight, S,while the upwardlyprojecting arm R of the same is adapted to be actedupon at the proper moment by the cam T, which is keyed upon thedriving-shaft O. Secured within a stout lug, U, and in line with theperforated guide m of the anvil M, is a rigid bar, V, against which theouter end of the butt rests when the wire or rod is being forced intothe same. This rod, by bearing against the solid or unperforated end ofthe butt Y, prevents any longitudinal shifting of the latter by theforcible entrance of the pintle within its socket '1, as clearly shownin Fig. 7. "W is the wire or rod to be employed for the pintles of thehinges, and said rod is passed between a number of grooved rollers, 20,which take out any bends or other irregularities that may exist in saidrod. These rollers rotate in a horizontal plane, and are arranged so asto maintain the straightened wire in line with the perforated guide m.

This machine operates in the following manner: The wire or rod W isfirst passed through between the rollers w, arm 70, and shoulder l, andthen inserted within the perforated guide on, the butt Y of the hingebeing placed in the opened jaws Q Q, with the outer or unperforated endof said butt resting against the rigid bar V. In this position of thebutt it will be seen that its socket y is exactly in line with guide m,and, as soon as the driving-shaft O is rotated in the directionindicated by the arrow .upon the fly-wheel in Fig. 1, the weight S operates the bell-crank R R It in such a manner as to close the sliding jawQ, and thus temporarily clamp the butt Y immovably to the machine. Assoon as the butt has been thus clamped in its proper position, therotation of shaft 0 causes the cam e to revolve against the roller wardthe abutment or anvil M. During this advancement of said. carriage, therod W is securely griped between the arm 70 and shoulder 1, andconsequently the wire is fed forward a distance equal to the stroke ortravel of said carriage F, which length of stroke has been previouslyregulated by the gage J. The rod is thus carried forward through theguide on with a positive movement, and forced into the socket y of thebutt, barbed end foremost, into the supporting blind'knuckle or memberof the hinge. The pin 0 now strikes against the cutter N, and advancesit toward the anvil M with such force as to cause its bit a to sever thewire. As soon as the wire is secured, the chisel a is brought to bearwit-11in the recess m, so as to prevent the wire or rod being withdrawnby the retraction of carriage F, which retraction of said carriage iseffected the moment the cam a has ceased to act upon the roller G. Thisprong or chisel it serves the double purpose of retaining the wirewithin the die m, while the carriage or feeding mechanism F K L is beingretracted, and it also nicks said wire obliquely, so as to forman'outwardly-projecting barb, X, as seen in Figs. 6, 7, and 10. Thisyielding barb or fin curves in such a direction as to allow the wire toenter the butt with comparative case; but the moment any attempt is madeto withdraw said wire, the barb then impinges against the side andallowing the wired butt to be removed from the machine, and an unwiredor pivotless one to be substituted for it, after which theabove-described operations are again repeated. WVhen removed from themachine, the butt has projecting from its socket a wire pin, pivot, orpintle of sufficient length to engage with the socket of the other leafor member of the butt, as seen in Fig. 10. The act of applying the otherhinge-leaf may then be accomplished by hand in the usual manner. Owingto the manner in which the eccentrics e T and pin 0 are disposed uponthe shaft 0, the various operations of nicking the wire, feeding it in,severing it with the bit, clamping it so as not to be withdrawn, andthen releasing the wired butt, are all performed in an automatic andconsecutive way, which not only insures the most perfect uniformity inconstruction, but enables a large number of hinges to be manufactured ina short time, thereby diminishing the cost of thesearticles.

I have described a machine such as employed by myself for inserting thewires in butthinges, but reserve the right to modify or entirely toreorganize the apparatus, as it is evident that my invention consists inthe automatic formation of butt-hinge pintles from a coil of wire or acontinuous rod, without any reference to the special'appliances by whichthe feeding in and severing of the rod or wire are accomplished.

I am aware that it has been proposed to secure the two members of thecommon or inseparable hinge by roughening or rusting that end of thepintle which occupies the upper most knuckle, and which, consequently,is the end last inserted. I, therefore, disclaim novelty inisuchroughening and mode of insertion after the two parts or butts are settogether.

I claim as my invention- The combination, with the reciprocatingfeed-carriage F f, guide m, jaws Q Q, and cut ter N, the retaining andnicking die 02/, substantially as and for the purpose designated.

In testimony of which invention I hereunto set my hand.

FRANK SWAN.

Attest: GEO. H. KNIGHT,

I JAMES H. LAYMAN.

